*{
    margin: 0;
    padding: 0;
    user-select: none;
}
body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
}

h1 {
    color: #333;
    text-align: center;
}

form {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

select option {
    text-align: center;
    font-size: 16px;
}

input {
    width: 95%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
button[type="submit"] {
    display: inline-block;
    width: 40%;
    padding: 10px;
    margin-top: 20px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button[type="submit"]:hover {
    background-color: #45a049;
}
.cancel {
    margin-left: 20%;
    display: inline-block;
    width: 40%;
    background-color: #f44336; 
    color: #fff; 
    border: none; 
    border-radius: 5px; 
    padding: 10px; 
    cursor: pointer;
}
.cancel:hover {
    background-color: #d32f2f;
}
@keyframes tipsIn {
    0% {
        opacity: 0;
        top: 20px;
    }
    10%{
        opacity: 1;
    }
    70% {
        opacity: 1;
        top: 20px;
    }
    100% {
        opacity: 0;
        top: -100px;
    }
}
.alert{
    position: absolute;
    top: -100px;
    left: 45vw;
    padding: 8px 20px;
    width: fit-content;
    line-height: 38px;
    height: 40px;
    color: #7c0f0f;
    border: 1px solid #f76459;
    border-radius: 10px;
    background-color: #ffc7c7;
    z-index: 999;
    animation:  tipsIn 2.5s ease-in-out;
    opacity: 1;
}
